Equipment unit · VIN-decoded · NHTSA vPIC

2018 Thomas Built HDX

1T7Y84E27J1124245 · Bus - School Bus · BUS
Carriers run under1
28 mo
Inspections6
all-time
OOS inspections0
of 6
First seenJun 15, 2023
CA
Last seenOct 13, 2025
CA
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1T7Y84E27J1124245
Make
Thomas Built
Model
HDX
Model year
2018
Body class
Bus - School Bus
Vehicle type
BUS
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 23, 2026
vPIC returns make / model / year / body class / GVWR. Fields it does not resolve are shown as Not decoded rather than guessed.
Decode evidence & sources

Deterministic structure

These fields come directly from VIN positions and the published checksum calculation, with zero store IO.

World manufacturer identifier
1T7

Deterministic · VIN positions 1–3.

Vehicle descriptor section
Y84E2

Deterministic · VIN positions 4–8.

Check digit
7 · valid

Deterministic · position 9; calculated value 7.

Model year candidates
1988 or 2018

Position 10 repeats every 30 years; both candidates are retained and neither is silently selected.

North American serial sequence
124245

Deterministic · positions 12–17 for a North American WMI.

Sourced platform inference

The prefix store publishes only at support ≥ 3 and purity ≥ 90%. Prefix confidence is shown beside every established platform claim.

Make
THOMAS BUILT

Prefix basis · 930 decoded VINs at 100.0% prefix purity.

Model
HDX

Prefix basis · 930 decoded VINs at 100.0% prefix purity.

Model line
Not established

No sourced model-line label is established.

No source established for this field.

Generation
Not established

No sourced generation label is established.

No source established for this field.

Cab type
Not established

No sourced cab label is established.

No source established for this field.

Federal observation (NHTSA vPIC)

What the federal corpus observed directly for this exact VIN — independent of, and sometimes more specific than, the prefix-level inference above.

Observed model year
2018

Observed directly for this VIN via NHTSA vPIC.

Observed make
THOMAS BUILT

Observed directly for this VIN via NHTSA vPIC.

Observed model
HDX

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Bus - School Bus

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
BUS

Observed directly for this VIN via NHTSA vPIC.

GVWR
Class 8: 33,001 lb and above (14,969 kg and above)

Observed directly for this VIN via NHTSA vPIC.

Not established

  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Jun 15, 2023 – Oct 13, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Oct 13, 2025CAV · Vehicle-only0SONORA UNION HIGH SCHOOL DISTRICT 26478901514811/CA
Oct 2, 2024CAV · Vehicle-only0SONORA UNION HIGH SCHOOL DISTRICT 26478901514811/CA
Oct 2, 2024CAV · Vehicle-only0SONORA UNION HIGH SCHOOL DISTRICT 26478901514811/CA
Jun 28, 2024CAV · Vehicle-only0SONORA UNION HIGH SCHOOL DISTRICT 26478901514811/CA
Sep 12, 2023CAV · Vehicle-only0SONORA UNION HIGH SCHOOL DISTRICT 26478901514811/CA
Jun 15, 2023CAV · Vehicle-only0SONORA UNION HIGH SCHOOL DISTRICT 26478901514811/CA
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SONORA UNION HIGH SCHOOL DISTRICT2647890Jun 15, 2023Oct 13, 20256CA
Names are left-joined from the FMCSA census; a DOT with no census match falls back to its number.
04

Plate & unit-number history

The same truck under different plate registrations across carriers

PlateState / prov.Unit no.CarrierDate rangeInsp.
1514811CASONORA UNION HIGH SCHOOL DISTRICTJun 15, 2023Oct 13, 20256
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 23, 2026